Is this possible? Never really thought about it before because I assumed that if I were to burn the mp3 files to disc, it would just come out as 2 channel audio during the conversion process anyways.

What I'm trying to do is, I have a DVD that has a music album on it in 6 channel ac3 files of course, so I converted THOSE files to 6 channel wav files, but after that process im left with 2.02GB worth of music files, which of course won't fit on CD, so I figure if I convert the files now to 6 channel mp3 (if that's even possible) then perhaps I could get the files small enough to fit on a regular CD, although there will be some quality loss. That much I'm aware of.

So if anyone knows of any software that can help me convert ac3 files to a small enough format to fit on disc and keep the 6 channels, it would be appreciated.

To followup on Cornucopia's excellent post...
AC3-CD or DTS-CD would be your best choices. It is essentially impossible to find any device in North America that is capable of correctly decoding MPEG1 layer 2 multichannel sound. It may be impossible in Europe as well now for all I know. Philips has abandoned the format and nothing outside of MAYBE (heavy emphasis on that word) PCs is now able to correctly play them. You'll get stereo playback instead on almost all devices because MPEG1 layer 2 multichannel is compatible with stereo playback and stereo playback of this audio format is all anything seems to support any more. I've never seen any devices except PCs that can play back MPEG1 layer 3 (MP3) surround files. MP3 surround files are more theoretically possible than practical and while I applaud Fraunhoffer, etc. for the format, nobody seems to be interested in it. AC3-CD and DTS-CD are both able to be played back on a wide variety of devices. Basically if you have a DVD player and an amp that supports decoding AC3 and DTS, they will both work for you. PC playback is no problem either. Do note that audio CD only players, such as in cars, cannot play back these discs. AC3-CD is really your best bet as converting to DTS-CD will require you to encode to DTS and that is lossy. You might notice some sound quality loss as a result of the encode to DTS. It's hard to sayk, but it's possible. AC3-CDs are a little tricky to make. Do a web search for the info. I have one as a demo disc that I downloaded from some web site a few years ago. but I didn't do the conversion to AC3 and I don't know what programs are needed to get from AC3 to AC3-WAV so that it can be burned to audio CD.

If an AC3-WAV is what I am thinking it is, like an SPDIF capture, then BeSweet will make these. I think they call it 5.1 Wave, or similar. Exactly like a 5.1 SPDIF capture. I have never tried playing one of these files directly thru SPDIF as output to my amp as I read the volume could be too high and damage equipment.

Hasn't been too long ago my local wholesale club had a Phillips HT package, this does handle multi-channel MPG. But this capability is so rare that I would not advise using it. Am making an Mpg 5.1 SVCD just for fun, but just once.